<h1>Union Budget 2018-19: Changes to Customs and Excise Duties on Silk, Mobile Parts, Fuel, and More Effective Feb 2, 2018.</h1> The explanatory memorandum outlines various notifications related to customs and central excise duties, effective from February 2, 2018, following the Union Budget 2018-19. Key changes include amendments to basic customs duty rates, exemptions from education and higher education cess, rescinding previous notifications, and exemptions on additional duties like road cess. Specific goods such as silk fabrics and parts of mobile phones see adjusted duty rates. Central excise notifications address rescinding previous mandates, reducing excise duty on petrol and diesel, and exempting certain ethanol-blended fuels and biodiesel from additional duties.